A 3-for-1 from STLToday.com! If you plan to carjack a vehicle- 1. Make sure your victim has a vehicle; 2. Make sure you know how to start the vehicle; and 3. Don't forget to take your backpack with you when you exit the vehicle. Bumbling Maplewood carjacker couldn't work stolen car, left backpack behind, police say MAPLEWOOD • Police say a [...]